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Demonstrating the difference between vertical and horizontal mass-spring systems. Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:12 The impossible frictionless, horizontal mass-spring system
0:44 It’s actually a vertical mass-spring system rotated 90 degrees
1:01 Similarities between horizontal and vertical mass-spring systems
Thank you to Anish, Kevin, and Olivia for being my “substitute students” in this video!
Next Video: When is a Pendulum in Simple Harmonic Motion?
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Simple Harmonic Motion - Force, Acceleration, and Velocity at 3 Positions
Please support me on Patreon!
Thank you to Christopher Becke, Jonathan Everett, and Aarti Sangwan for being my Quality Control Team for this video.
Thank you to Youssef Nasr for transcribing the English subtitles of this video.

What is the minimum angular speed necessary to keep water in a vertically revolving bucket? The rope radius is 0.77 m.
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:13 The demonstration
0:35 Understanding the problem
1:04 Where do we draw the Free Body Diagram
2:06 Summing the forces
3:04 What happens at the minimum angular speed
3:53 Why the force of tension is zero
4:41 Solving the problem
Next Video: The Right Hand Rule for Angular Velocity and Angular Displacement
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Analyzing Water in a Bucket Revolving in a Vertical Circle
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.

Name: Minimum Speed for Water in a Bucket Revolving in a Vertical Circle Category: Rotational Motion Date Added: 2017-10-30 Submitter: Flipping Physics
What is the minimum angular speed necessary to keep water in a vertically revolving bucket? The rope radius is 0.77 m.
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:13 The demonstration
0:35 Understanding the problem
1:04 Where do we draw the Free Body Diagram
2:06 Summing the forces
3:04 What happens at the minimum angular speed
3:53 Why the force of tension is zero
4:41 Solving the problem
Next Video: The Right Hand Rule for Angular Velocity and Angular Displacement
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Analyzing Water in a Bucket Revolving in a Vertical Circle
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.
Minimum Speed for Water in a Bucket Revolving in a Vertical Circle

Analyzing the forces acting on a bucket of water which is revolving in a vertical circle.
Want Lecture Notes? This is an AP Physics 1 topic.
A big thank you to Mr. Becke for being a guest in today’s video!
Content Times:
0:11 The demonstration
0:24 Drawing four Free Body Diagrams
1:30 Summing the forces with the bucket at the bottom
2:27 What is the centripetal force?
3:28 Why the Force Normal greater than the Force of Gravity with Mr. Becke!
Next Video: Minimum Speed for Water in a Bucket Revolving in a Vertical Circle
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Demonstrating Why Water Stays in a Bucket Revolving in a Vertical Circle
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.

Name: Analyzing Water in a Bucket Revolving in a Vertical Circle Category: Rotational Motion Date Added: 2017-10-23 Submitter: Flipping Physics
Analyzing the forces acting on a bucket of water which is revolving in a vertical circle.
Want Lecture Notes? This is an AP Physics 1 topic.
A big thank you to Mr. Becke for being a guest in today’s video!
Content Times:
0:11 The demonstration
0:24 Drawing four Free Body Diagrams
1:30 Summing the forces with the bucket at the bottom
2:27 What is the centripetal force?
3:28 Why the Force Normal greater than the Force of Gravity with Mr. Becke!
Next Video: Minimum Speed for Water in a Bucket Revolving in a Vertical Circle
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Demonstrating Why Water Stays in a Bucket Revolving in a Vertical Circle
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.
Analyzing Water in a Bucket Revolving in a Vertical Circle

Yes, water stays in the bucket. Would you like to know why? Watch the video and learn!
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:14 The demonstration
0:52 Why does water flow out of a bucket?
1:40 Inertia!
2:38 Visualizing why
Next Video: Analyzing Water in a Bucket Revolving in a Vertical Circle
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Determining the Force Normal on a Toy Car moving up a Curved Hill
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.

Name: Demonstrating Why Water Stays in a Bucket Revolving in a Vertical Circle Category: Rotational Motion Date Added: 2017-10-15 Submitter: Flipping Physics
Yes, water stays in the bucket. Would you like to know why? Watch the video and learn!
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:14 The demonstration
0:52 Why does water flow out of a bucket?
1:40 Inertia!
2:38 Visualizing why
Next Video: Analyzing Water in a Bucket Revolving in a Vertical Circle
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Determining the Force Normal on a Toy Car moving up a Curved Hill
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.
Demonstrating Why Water Stays in a Bucket Revolving in a Vertical Circle

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